M-10 - Public Protection Classification Report - ISO Rating

Item 621 – Credit for Hydrants (3 points) The second item reviewed is Item 621 “Credit for Hydrants (CH)”. This item reviews the number of fire hydrants of each type compared with the total number of hydrants. There are a total of 285 hydrants in the graded area. Number of 620. Hydrants, - Size, Type and Installation Hydrants A. With a 6 -inch or larger branch and a pumper outlet with or without 2½ - 273 inch outlets B. With a 6 -inch or larger branch and no pumper outlet but two or more 10 2½ -inch outlets, or with a small foot valve, or with a small barrel C./D. With only a 2½ -inch outlet or with less than a 6 -inch branch 2 E./F. Flush Type, Cistern, or Suction Point 0 Item 621 “Credit for Hydrants (CH)” = 2.96 points Item 630 – Credit for Inspection and Flow Testing (7 points) The third item reviewed is Item 630 “Credit for Inspection and Flow Testing (CIT)”. This item reviews the fire hydrant inspection frequency, and the completeness of the inspections. Inspection of hydrants should be in accordance with AWWA M-17, Installation, Field Testing and Maintenance of Fire Hydrants. Frequency of Inspection (FI): Average interval between the 3 most recent inspections. Frequency Points 1 year 30 2 years 20 3 years 10 4 years 5 5 years or more No Credit Note: The points for inspection frequency are reduced by 10 points if the inspections are incomplete or do not include a flushing program. An additional reduction of 10 points are made if hydrants are not subjected to full system pressure during inspections. If the inspection of cisterns or suction points does not include actual drafting with a pumper, or back-flushing for dry hydrants, 20 points are deducted. Total points for Inspections = 2.40 points PPC is a registered trademark of Insurance Services Office, Inc. Page 20